The feature I like best is the camera.
Click PLAY or watch it on YouTube.
If I actually use the device for navigation, email, social networking … I’ll want excellent syncing between phone and my MacBook Air. Not perfect, it looks like Apple is on the way to getting that working.
Click PLAY or watch it on YouTube.
It’s the first iPhone that is easy to use internationally. But it’s critical I know how to turn off roaming and data.
related – International iPhone: Avoiding iPhone Data Roaming Charges
Rick McCharles 
Hmmm, Siri as a hiking partner. Might be interesting 😉